/Engine/Plugins/MovieScene/SequencerScripting/Source/SequencerScripting/Public/ExtensionLibraries/MovieSceneSectionExtensions.h
Get start frame of the AutoSize. Will throw an exception if section has no start frame, use GetAutoSizeHasStartFrame to check first.
The start frame of the AutoSize data.
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)(BlueprintCallable, Category="Sequencer|Section", Meta=(ScriptMethod)) static int32 GetAutoSizeStartFrame ( [UMovieSceneSection](API\Runtime\MovieScene\UMovieSceneSection) * Section )